1 files changed, 24 insertions, 0 deletions
diff --git a/tools/code-coverage/nsICodeCoverage.idl b/tools/code-coverage/nsICodeCoverage.idl
new file mode 100644
index 0000000000..ec4ad40ae1
--- /dev/null
+++ b/tools/code-coverage/nsICodeCoverage.idl
@@ -0,0 +1,24 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsISupports.idl"
+
+/**
+ * The nsICodeCoverage component allows controlling the code coverage counters
+ * collected by Firefox during execution.
+ * By flushing the counters, one can analyze the coverage information
+ * for a subset of the program execution (e.g. startup code coverage).
+ *
+ */
+
+[scriptable, uuid(57d92056-37b4-4d0a-a52f-deb8f6dac8bc)]
+interface nsICodeCoverage : nsISupports
+{
+  /**
+   * Write the coverage counters to disk, and reset them in memory to 0.
+   */
+  [implicit_jscontext]
+  Promise flushCounters();
+};